Finding the Fourth Proportional to 2,156,147.81, 2,975,431.83 and 1,189,257.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,147.81 : 2,975,431.83 = 1,189,257.34 : x
2. Step 2: Convert to fraction form
   2,156,147.81/2,975,431.83 = 1,189,257.34/x
3. Step 3: Cross multiply
   2,156,147.81x = 2,975,431.83 × 1,189,257.34
4. Step 4: Simplify right side
   2,156,147.81x = 3,538,554,137,177.77
5. Step 5: Solve for x
   x = 3,538,554,137,177.77/2,156,147.81
6. Step 6: Final answer
   x = 1,641,146.36